. >>> tissue samples from yasser arafat's body are in the hands of forensic experts. his grave was opened today in ramallah. samples were taken from his remains. the exact cause of the former palestinian leader's death has long been a mystery. now testing will be done to find out if arafat was in fact poisons. >> the indications we have or the convictions we have that israel have done this assassination but yet we still need evidence. >> israel meantime denied those allegations. >>> a fiery scene in downtown sydney, australia, today. look at this with me and you'll see a cab, look at this, of a construction crane engulfed in flames, black smoke. it gets worse. because this is the moment when the crane, this arm here collapses, falls into a building, barely misses the busy street below. here's where the story gets a little bit more intriguing. the operator of the crane was also the manager of the crane that collapsed in new york during superstorm sandy. >>> drugs, gangs, murder. one expert says that is exactly what many americans think of mexico and the country's newest leader here, the presiden
